Six months treasure voice purr small, common following several situations: first, congenital laryngeal asthma, after birth throat appeared purr purr rattling, more obvious in sleep and breastfeeding, is because of calcium deficiency, so that the baby’s laryngeal cartilage underdevelopment, spoon-shaped changes in respiration, which issued purr rattling, can be given to supplemental vitamin D and calcium supplements, outdoor activities in the sun, with the growth of age, will gradually Improvement, in addition to the voice snoring, the baby’s general condition is good. Second, when there is respiratory tract infection, you can hear phlegm wheezing, breathing aggravation, the baby’s mental state is poor, there can be fever, coughing and other symptoms, you can X-ray chest X-ray, give anti-infection, phlegm and other treatments, the need for timely access to medical care.